Malicious PDF — malware analysis report

Static analysis result for SHA-256 25976647399046d6…

MALICIOUS

PDF

71.6 KB Created: 2021-02-27 22:45:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 01c4cf143fe8fcd6d1ac06a831f7790e SHA-1: 68906b7b5acdd92c5487af3312640c940ad3e65c SHA-256: 25976647399046d6bd7545168a66019941b79f04c7695e3c9f1e69eaee9c38c6
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://mezovuduw.ru/award?keyword=which+printer+is+best+for+ink+costs PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4420432/normal_601f33ca40855.pdfIn PDF document text
    • https://dugigoje.weebly.com/uploads/1/3/4/7/134754128/21533adbf0ab7.pdfIn PDF document text
    • http://daimontimur.org/how_to_make_your_teeth_whiter_with_apple_cider_vinegar94ar3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417670/normal_5fdc894787ab5.pdfIn PDF document text
    • http://carbackseat.site/what_is_the_last_book_in_the_house_of_night_seriessa4ae.pdfIn PDF document text
    • http://bigno.space/after_night_font_freezi0xw.pdfIn PDF document text
    • https://zosojelukik.weebly.com/uploads/1/3/1/8/131871698/9201778.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421218/normal_6010fd9a6c3db.pdfIn PDF document text
    • http://mebelintera.ru/omron_bp652_pricesmmd4.pdfIn PDF document text
    • https://suvamowifav.weebly.com/uploads/1/3/4/3/134351486/vulok.pdfIn PDF document text
    • http://nature-ital.space/program_xfinity_remote_to_tv_no_setup_buttoncyytk.pdfIn PDF document text
    • https://lodavoxi.weebly.com/uploads/1/3/4/5/134505118/95c11193c9e592.pdfIn PDF document text
    • http://idealica-italiaufficiale.site/nidedojamuzolanekifirz8sk2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/tujeviwakirawu/super_vpn_android_2._3.pdfIn PDF document text
    • http://wulibazosuxib.onlinewebshop.net/diborusenemela.pdfIn PDF document text
    • https://s3.amazonaws.com/vukujidor/bushnell_neo_xs_firmware_update.pdfIn PDF document text
    • https://s3.amazonaws.com/babetafaperaxov/although_despite_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/xamibebulosaxug/practice_dna_structure_and_replication_answer_key.pdfIn PDF document text
    • http://vorisenunajix.myartsonline.com/tissot_t_touch_expert_solar_1_vs_2.pdfIn PDF document text
    • https://s3.amazonaws.com/kewuxejikiwe/operaciones_combinadas_con_fracciones_2o_eso_ejercicios_resueltos.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dc4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC4E 5080 bytes
SHA-256: 67d4ab1992812aa86537bad7d176f9d1aa08ed6f8489ac1d448dbadce66d6bab
font_01_sfnt_off0000eda5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDA5 10428 bytes
SHA-256: 2628fa4449a797a0a02e9067f045d10a7481c8d83ef8cf1ff84bccf1e910627a